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Tuesday, 26 November 2013

Cylindrical, Grinding, Operation

Cylindrical, Grinding, OperationPoints : Cylindrical, Grinding, Operation, Traverse Grinding, Plunge GrindingCylindrical grinding produces a cylindrical or conical shape on a work-piece. The
work-piece is mounted between centers or in a chuck, and the face of the grinding
wheel passes over the external surface of the revolving piece. Straight, taper, and form
grinding is possible using this technique. Cylindrical grinding is done on either plain or
universal cylindrical grinding machines.
The modem cylindrical grinder is economical practicable to machine hardened steel
parts to tolerances of 1/1 00000 (0.00001) in. or 0.000204 mm with extremely fine
surface finishes. Two variations of cylindrical grinding are:1. Traverse GrindingA fixed , amount of material is removed from the rotating work as it moves past the
revolving grinding wheel. Work wider than the face of the grinding wheel can be
ground.2. Plunge GrindingIn this technique the work still rotates. However, it is not necessary to give it a
reciprocating motion because the surface being ground is no wider than the face of a
grinding wheel. Grinding wheel in feed is continuous rather than incremental minute
changes made of regular intervals.